CN219754396U

CN219754396U - Floor safety door structure of die casting machine

Info

Publication number: CN219754396U
Application number: CN202321119270.5U
Authority: CN
Inventors: 马保庆
Original assignee: Guangdong Baoyang Precision Machinery Co ltd
Current assignee: Guangdong Baoyang Precision Machinery Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-09-26
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a die casting machine landing safety door structure, which comprises: the inside of the fixed bracket is provided with a cavity extending leftwards and rightwards; the guide rail frame is of an integrally formed steel plate structure, the guide rail frame is fixedly arranged in the cavity, and the upper end face and the lower end face of the guide rail frame are guide faces which linearly extend in a strip shape along the left-right horizontal direction; a door body; the connecting piece is connected to the frame of the door body; the supporting seat is of an integrally formed frame body structure, and an integrally formed wheel cavity is formed in the supporting seat; the U-shaped pulleys are rotatably arranged on each wheel cavity, the supporting seat extends into the cavity, at least two U-shaped pulleys are respectively connected to the guide surfaces on the upper side and the lower side in a sliding way, the U-shaped pulleys roll along the guide rail frame, and the door body is horizontally moved inside and outside the cavity; the guide rail frame, the door body, the connecting piece and the supporting seat do not need any welding operation in the assembly process, the whole size chain has high-precision parallelism, the U-shaped pulley is effectively ensured to roll along the line in the transmission process, and the stability of the door body in translation is ensured.

Description

Floor safety door structure of die casting machine

Technical Field

The utility model relates to a protective device of a die casting machine, in particular to a floor safety door structure of the die casting machine.

Background

The safety door of the large die casting machine is not easy to damage in a relatively severe die casting environment, and plays a role in safety protection. The existing safety doors have the defects that the parallelism of the upper guide rail and the lower guide rail is difficult to ensure, the position tolerance of the roller installation is difficult to ensure, and the running parallelism of the existing rollers is more than 2mm in two aspects. The safety door with the structure is relatively heavy, and the running parallelism of the rollers is difficult to ensure, so that the safety door is extremely easy to damage after being used for about 3 years, and the safety door is deformed or the parallelism of the guide rail is poor during semi-automatic production, so that the condition of switching induction failure and frequent alarm frequently occurs.

Disclosure of Invention

The present utility model aims to solve at least one of the above-mentioned technical problems in the related art to some extent. Therefore, the utility model provides a landing safety door structure of a die casting machine.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

according to a first aspect of the present utility model, a landing safety door structure of a die casting machine includes:

the fixing support is internally provided with a cavity extending leftwards and rightwards;

the guide rail frame is of an integrally formed steel plate structure, the guide rail frame is fixedly arranged in the cavity, and the upper end face and the lower end face of the guide rail frame are guide faces which linearly extend in a strip shape along the left-right horizontal direction;

a door body;

the connecting piece is connected to the frame of the door body;

the support seat is of an integrally formed frame structure, the support seat is connected with the connecting piece, the support seat is provided with integrally formed wheel cavities, and at least four wheel cavities are longitudinally distributed in rectangular four corners on the support seat;

u-shaped pulleys are rotatably arranged on each wheel cavity, the supporting seat stretches into the cavity, at least two U-shaped pulleys are respectively connected to the guide surfaces on the upper side and the lower side in a sliding mode, the U-shaped pulleys roll along the guide rail frame, and the door body is horizontally moved to the inner portion and the outer portion of the cavity.

The landing safety door structure of the die casting machine provided by the embodiment of the utility model has at least the following beneficial effects: the guide rail frame, the door body, the connecting piece and the supporting seat do not need any welding operation in the assembly process, the whole size chain has high-precision parallelism, the U-shaped pulley is effectively ensured to roll along the line in the transmission process, and the stability of the door body in translation is ensured.

According to some embodiments of the utility model, one side of the frame of the door body is a vertical first finish surface; the connecting piece is provided with a second finish machining surface and a third finish machining surface, the second finish machining surface and the third finish machining surface vertically extend along the vertical direction and are mutually perpendicular, and the second finish machining surface is fixedly connected with the first finish machining surface; the supporting seat is fixedly connected with the third finish machining surface; the axial direction of the wheel cavity is perpendicular to the third finish machining surface.

According to some embodiments of the utility model, the supporting seat is in a rectangular frame structure, four wheel cavities are distributed at four corners of the supporting seat, and the wheel cavities extend from the side surface of the supporting seat in a hollow cylinder shape.

According to some embodiments of the utility model, the connecting piece is in a rectangular strip structure, and the first finished surface and the second finished surface, and the third finished surface and the supporting seat are respectively fixed through bolts.

According to some embodiments of the utility model, an axle is arranged in the wheel cavity in a penetrating way, one end of the axle is fastened on the end part of the wheel cavity through a locking screw, the other end of the axle extends out of the wheel cavity and is sleeved with a bearing, and the U-shaped pulley is arranged on the bearing.

According to some embodiments of the utility model, the bearing is a deep groove ball bearing.

According to some embodiments of the utility model, a plurality of connecting blocks are arranged between the guide rail frame and the fixed bracket and are fixed through the locking bolts.

According to some embodiments of the utility model, the device further comprises a driving mechanism, wherein the driving mechanism is arranged in the cavity, the driving mechanism comprises a motor, a synchronous belt, a tensioning wheel and a synchronous clamping piece, the synchronous belt is tightly wound between the motor and the tensioning wheel, the synchronous clamping piece is fixed on the supporting seat, and the synchronous clamping piece is clamped on the synchronous belt.

According to some embodiments of the utility model, two travel switches are mounted in the cavity, the two travel switches being located at the end of travel of the door.

According to some embodiments of the utility model, the fixing support is formed by connecting front and rear groups of frames through a cross beam, the cavity is formed between the two groups of frames, and two supporting feet are arranged at the bottom of each frame.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of the overall construction assembly of the present utility model;

FIG. 2 is a schematic view of a part of the structure;

FIG. 3 is an exploded view of the connector, support base and U-shaped pulley arrangement;

fig. 4 is a schematic view of a fixed bracket structure.

Reference numerals:

a fixing bracket 100; a cavity 101; a connection block 102; a travel switch 103;

a rail frame 200; a guide surface 201;

a door 300; a first finished surface 301;

a connector 400; a second finished surface 401; a third finished surface 402;

a support base 500; wheel cavity 501;

u-shaped pulley 600; an axle 601; a bearing 602;

a motor 710; a timing belt 720; a tensioning wheel 730; synchronizing clip 740.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The utility model relates to a floor safety door structure of a die casting machine, which comprises a fixed bracket 100, a guide rail frame 200, a door body 300, a connecting piece 400, a supporting seat 500 and a U-shaped pulley 600.

In this embodiment, as shown in fig. 1 and 4, the fixing bracket 100 may be formed by locking and splicing a plurality of struts by bolts. The fixing bracket 100 has a cavity 101 formed therein, and the cavity 101 extends in the left-right direction in the direction shown in the drawing. The outside of the fixing bracket 100 may be covered with a panel (not shown in the drawing). The rail frame 200 is an integrally formed steel plate structure. The rail housing 200 is installed in the cavity 101, and in this embodiment, the rail housing 200 is located near the left side of the fixing bracket 100. The rail frame 200 is integrally formed, and the rail frame 200 is fixed in the cavity 101 from left to right along the extending direction of the cavity 101. The upper and lower end surfaces of the rail frame 200 are parallel to each other and each linearly extend in a long form from left to right in the horizontal direction, and the upper and lower end surfaces of the rail frame 200 are defined as guide surfaces 201. The guide surface 201 of the guide rail frame 200 is matched with the structure of the guide rail frame, and the parallelism of the two guide surfaces 201 is ensured by turning and grinding finish machining. The door body 300 is located at the left side between the fixing positions, the right side of the frame of the door body 300 is provided with a first finish machining surface 301, and the first finish machining surface 301 can be machined to be vertically downward through finish machining processes such as turning and grinding, so that the verticality of the first finish machining surface 301 is guaranteed. As shown in fig. 2 and 3, the connector 400 may alternatively be a strip steel bar having a rectangular cross section. The connector 400 is vertically disposed and has a second finish surface 401 and a third finish surface 402, the second finish surface 401 and the third finish surface 402 are perpendicular to each other, and the second finish surface 401 and the third finish surface 402 are both vertically downward. The second finished surface 401 and the third finished surface 402 may be processed by a finishing process such as turning and grinding. The first finishing surface 301 and the second finishing surface 401 are attached to each other, and can be fastened and connected by bolts. The supporting seat 500 is an integrally formed frame structure. The supporting seat 500 is fixedly connected with the third finishing surface 402 through bolts. The surface of the support base 500 connected to the third finishing surface 402 may also be finished to ensure perpendicularity. At least four wheel cavities 501 are provided on the support base 500, and the wheel cavities 501 are integrally formed on the support base 500. The wheel cavity 501 extends from a surface of the support base 500, and an axial direction of the wheel cavity 501 is arranged in a direction perpendicular to the third finishing surface 402. Wherein, at least four wheel cavities 501 are rectangular and four corners distributed along the longitudinal direction (the height direction of the supporting seat 500) of the supporting seat 500. In this embodiment, only four wheel cavities 501 are disposed on the supporting seat 500, two wheel cavities 501 are located at the same level of the upper portion of the supporting seat 500, and the other two wheel cavities 501 are located at the same level of the lower portion of the supporting seat 500 and are vertically symmetrical. A U-shaped pulley 600 is rotatably mounted on each wheel cavity 501. The supporting seat 500 slides into the cavity 101 from the left side of the fixed bracket 100, the U-shaped chute of the U-shaped pulley 600 at the upper part slides on the guide surface 201 at the upper side, and the U-shaped chute of the U-shaped pulley 600 at the lower part slides on the guide surface 201 at the lower side. The U-shaped pulley 600 rolls on the guide rail frame 200 along the guide surface 201, and further drives the door 300 to translate relative to the fixed bracket 100, so that the door 300 slides into or out of the cavity 101. When the door 300 moves, the door 300 is guided between the U-shaped pulley 600 and the guide rail frame 200, and is abutted against the guide rail frame 200 by the rollers, so that the door 300 is ensured not to deviate in the height direction. The guide rail frame 200 and the supporting seat 500 are all integrally formed components, no welding operation is needed in the assembly process among the guide rail frame 200, the door body 300, the connecting piece 400 and the supporting seat 500, the whole size chain has high-precision parallelism, the U-shaped pulley 600 is effectively ensured to roll along the line in the transmission process, and the stability of the door body 300 in translation is ensured.

In some embodiments of the present utility model, as shown in fig. 3, the support base 500 has a rectangular frame structure. Four wheel cavities 501 are distributed at four corners of the support base 500, and the wheel cavities 501 extend from the side surface of the support base 500 in a hollow cylinder shape. The supporting seat 500 may be integrally formed by casting, and the axial direction of each U-shaped pulley 600 may be ensured to be parallel to each other after the supporting seat 500, the connecting member 400 and the U-shaped pulleys 600 are assembled.

In some embodiments of the present utility model, as shown in fig. 3, a wheel shaft 601 is inserted into the wheel cavity 501, and one end of the wheel shaft 601 is fastened to the end of the wheel cavity 501 by a locking screw. The other end of the axle 601 protrudes out of the wheel cavity 501 and is sleeved with a bearing 602, which bearing 602 is preferably a deep groove ball bearing. The U-shaped pulley 600 is mounted on a bearing 602 and then can be secured by a collar snap fit. The structural strength of the connection between the wheel cavity 501 and the U-shaped pulley 600 is increased by the wheel shaft 601, and the rolling smoothness and the bearing capacity of radial load are ensured by the deep groove ball bearings.

As shown in fig. 4, a connection block 102 is provided between the rod of the fixing bracket 100 and the rail frame 200, and is fastened by a locking bolt. And welding is not needed between the guide rail frame 200 and the fixed bracket 100, so that the stress deformation caused by welding is effectively avoided.

A driving mechanism is further installed in the cavity 101, and the driving mechanism includes a motor 710, a synchronous belt 720, a tensioning wheel 730 and a synchronous clamping piece 740. As shown in fig. 2, the tensioner 730 is located on the left side of the cavity 101, the motor 710 is located on the right side of the cavity 101, and the timing belt 720 is tightly wound around between the motor 710 and the tensioner 730. The synchronization clip 740 is fixed on the support base 500, and the synchronization clip 740 may be composed of a clamping plate. The synchronizing clamp 740 clamps onto the timing belt 720. When the motor 710 rotates, the supporting seat 500 is pulled by the synchronous belt 720, so as to drive the door 300 to translate. In which two travel switches 103 are mounted in the cavity 101, one travel switch 103 being located at the left bottom of the cavity 101 and the other travel switch 103 being located at the right bottom of the cavity 101. The two travel switches 103 are located at the moving travel end of the door 300, that is, one travel switch 103 detects the maximum limit position of the door 300 pulled out relative to the cavity 101, and the other travel switch 103 detects the limit position of the door 300 extending into the cavity 101.

In some embodiments, as shown in fig. 4, the fixing bracket 100 is formed by connecting front and rear sets of frames 110 through a cross beam 120. A cavity 101 is formed between the two sets of frames 110, and two support legs 111 are provided at the bottom of each frame 110. After the fixing bracket 100 is installed, the fixing bracket is supported by the frames 110 at two sides, and the two sides are balanced, so that the stability in the use process can be ensured.

In the description of the present specification, reference to the term "some particular embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A die casting machine landing safety door structure, characterized by comprising:

a fixed bracket (100), wherein a cavity (101) extending leftwards and rightwards is formed in the fixed bracket (100);

the guide rail frame (200) is of an integrally formed steel plate structure, the guide rail frame (200) is fixedly arranged in the cavity (101), and the upper end face and the lower end face of the guide rail frame (200) are guide faces (201) which linearly extend in a long strip shape along the horizontal direction;

a door body (300);

the connecting piece (400), the said connecting piece (400) connects to the frame of the said door body (300);

the support seat (500), the support seat (500) is an integrally formed frame structure, the support seat (500) is connected with the connecting piece (400), the support seat (500) is provided with integrally formed wheel cavities (501), and at least four wheel cavities (501) are longitudinally distributed on the support seat (500) in rectangular four corners;

u type pulley (600), every rotate on wheel chamber (501) install U type pulley (600), supporting seat (500) stretch into in cavity (101), upper and lower both sides on guide surface (201) respectively the slip connect have at least two U type pulley (600), U type pulley (600) are followed guide rail frame (200) roll, door body (300) translation in the inside and outside of cavity (101).

2. The die casting machine landing safety door structure according to claim 1, characterized in that: a first vertical finish surface (301) is arranged on one side of the frame of the door body (300); the connecting piece (400) is provided with a second finishing surface (401) and a third finishing surface (402), the second finishing surface (401) and the third finishing surface (402) vertically extend along the vertical direction and are mutually vertical, and the second finishing surface (401) is fixedly connected with the first finishing surface (301); the supporting seat (500) is fixedly connected with the third finish machining surface (402); the axial direction of the wheel cavity (501) is perpendicular to the third finishing surface (402).

3. The die casting machine landing safety door structure according to claim 1, characterized in that: the supporting seat (500) is of a rectangular frame body structure, four wheel cavities (501) are distributed at four corners of the supporting seat (500), and the wheel cavities (501) extend out from the side face of the supporting seat (500) in a hollow cylinder shape.

4. The die casting machine landing safety door structure according to claim 2, characterized in that: the connecting piece (400) is of a rectangular strip-shaped structure, and the first finish machining surface (301) and the second finish machining surface (401), the third finish machining surface (402) and the supporting seat (500) are respectively fixed through bolts in a penetrating mode.

5. The die casting machine landing safety door structure according to claim 1, characterized in that: wheel axle (601) wears to be equipped with in wheel chamber (501), the one end of wheel axle (601) passes through locking screw fastening on the tip in wheel chamber (501), the other end of wheel axle (601) stretches out to wheel chamber (501) is outside and the cover is equipped with bearing (602), U type pulley (600) are installed on bearing (602).

6. The die casting machine landing safety door structure according to claim 5, wherein: the bearing (602) is a deep groove ball bearing.

7. The die casting machine landing safety door structure according to claim 1, characterized in that: a plurality of connecting blocks (102) are arranged between the guide rail frame (200) and the fixed support (100) and are penetrated and fixed through locking bolts.

8. The die casting machine landing safety door structure according to claim 1, characterized in that: still include actuating mechanism, actuating mechanism installs in cavity (101), actuating mechanism includes motor (710), hold-in range (720), take-up pulley (730) and synchronous folder (740), hold-in range (720) tensioning encircle motor (710) with between take-up pulley (730), synchronous folder (740) are fixed on supporting seat (500), synchronous folder (740) centre gripping is in on hold-in range (720).

9. The die casting machine landing safety door structure according to claim 1, characterized in that: two travel switches (103) are arranged in the cavity (101), and the two travel switches (103) are positioned on the moving travel end point of the door body (300).

10. The die casting machine landing safety door structure according to claim 1, characterized in that: the fixing support (100) is formed by connecting front and rear groups of frames (110) through cross beams (120), a cavity (101) is formed between the two groups of frames (110), and two supporting feet (111) are arranged at the bottom of each frame (110).